<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>

</body>
<script>
	setTimeout(()=>{
		console.log(300)
	})
    const p = new Promise((resolve)=>{
		resolve(200);
    })
    p.then(value=>{
		console.log(value);// 200
    })

	console.log("over");
</script>
</html>